Percolator for extracting oils from seeds



(No Model.) I

H. T. YARYAN.

PBRGOLATOR FOB. EXTRAOTING OIL PROM SEEDS, &e. No. 280,550. Patented Jul 3, '1883.

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; UNITED STATES PATENT OFFICE.

HOMER YARYAN, or 'roLnno, OHIO.

'PERCOLATOR FOR EXTRACTING OILS FROM SEEDS, 86C.

SPECIFICATION forming part of Letters Patent No. 280,550, dated July 3, 1883.

' Application filed March 31,1883. (No model.)

To aZZ.wh0m it may concern:

Be it known'that I, HOMER T. YARYAN, a citizen of the United States, residing at T0- ledo, Lucas county,0hio, have invented new and useful Improvements in Percolators for Extracting Oils from Seeds, 850., of which the following is a specification.

My invention relates to the process and apparatus for the extraction of oils from vegetable seeds, 850., by the use of a solvent, for which various Letters Patent have heretofore been granted to me, among which N 0. 205,516, dated July 2, 1878, No. 205,328, dated June 25, 1878, and No. 220, 203, dated September 30, 1879, more nearly relate to the subject of my present application. In said process the seed, meal, or other oil-bearing substance, in a finelydivided state, is treated with naphtha or other hydrocarbon solvent in a tank or percolator, and after the solvent liquid carrying oil in solution is drawn off the meal is treated with superheated steam to vaporize and drive off the residual solvent. In working this process, and to counteract the tendency of the wet meal to settle and pack together in the percolator when the solvent is drawn off, and to aid the penetration of the steam through the mass, I employ a system of supports, fully described in said Letters Patent N 0. 220,203, consisting, substantially, of a series of radial arms, either secured to a standard resting on the bottom of the percolator or suspended from the top, and as the percolators then used were swung upon trunnion-pivots and inverted for the removal of the meal, the supports dropped down and assisted in dislodging the mass, and could also be entirely removed. In the further development of the art, however, it has been found convenient to use the old form of digestingtanks resting permanently upon the floor and provided with a man-hole at the top for charging, and one at or near the bottom for removing the meal; and my present invention, which is in the nature of an improvement upon that covered by the Letters Patent last mentioned, has for its object the construction and arrangement of the system of supports, so that while performing the functions set forth in said former patent the removal of the residual meal may be facilitated.

To this end my invention consists in com The percolator A is the common cylindrical form of digesting-tanks, having aman-hole, B, at the top and another, 0, at the side, near the bottom, both fitted with suitable covers or doors.

I have omitted from the drawings the pipes and other connections, except as hereinafter indicated, as they do not bear upon or assist the understanding of my present improvements.

The bottom of the tank is usually rounded or funnel-shaped, as shown, to assist the flow of liquids through the discharge-opening a. From the top of the tank, by a chain or rod, 1), is suspended a series of radial arms, a, which may be constructed as a spider or rimless wheel in a single plane, orarranged one above another at different angles, as may bemost convenient; but ordinarily the spider arrangement shown will be preferable.

Below the suspended arms I arrange, upon suitable lugs, d, loose bars D, which are to be placed in such position as to be easily displaceable from their supports by tools inserted through the man-hole C. The arrangement shown in Fig. 2 is convenient for this purpose, in which the forward ends of the bars D rest upon a removable cross-bar, D, arranged upon suitable lugs within the openings 0. The bar D being knocked out, the bars D D are left without front supports, and can easily be withdrawn through the man-hole G. Orossbars'may be placed upon the bars D D, if found desirable. 1

The operation of this system of supports is as follows: The meal, by its superincumbent weight and the gradual flow downward of the solvent liquid, naturally packs most firmly at the lower part and bottom of the tank, and supports are therefore most effective at such portion in preventing such packing, and in maintaining interstices beneath for the penetration of the steam throughout the mass, the steam-openings s being arranged to communicate with such interstices beneath the supports. On opening the man-hole C for the removal of meal, that portion of the mass beneath the bars D is first removed, the supports acting to hold up the superincumbent mass. After this is removed the supports D D are knocked down and withdrawn, andthe mass then easily loosened and falls down by gravity, the upper supports, 0, affording no serious impediment because of the diminished density of the mass at that portion of the tank.

It will be apparent that the apparatus will be operative in a degree with the removable bars D alone without the suspended arms 0, and such is within the spirit of my invention;

but ordinarily the suspended arms will be found advantageous.

I claim as my invention and desireto secure by Letters Patent l. in combination with the percolatingtank A, the removable bars D, substantially as and for the purpose specified.

2. In a percolating-tank, A, provided with man-holes B G, the suspended arms 0, in combination with the knockdown bars D D, substantially as and for the purpose set forth.

3. In a percolating-tank for the digestion of oil-bearing substances with a solvent, the knockdown bars D, in combination with supporting-bar D, substantially as set forth.

I11 testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HOMER T. YARYAN.

\Vitnesses:

.T. M. Srnrrrnxs, 16. O. BRO\VN. 

